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questions :capillary what is?
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[Member (365WT)]answers [Chinese ]Time :2019-08-28
Capillary: It is the thinnest tube with an average diameter of about 6~9μm. It is the most widely distributed blood vessel. It is a blood vessel that connects the arterioles and venules. They branch and mesh with each other. The tube wall is thin and the permeability is strong. Its function is to facilitate the exchange of substances between blood and tissues. The density of capillary networks in various organs and tissues varies greatly, and the tissues and organs with strong metabolism such as skeletal muscle, heart muscle, lung, kidney and many glands, capillary The vascular network is very dense; the less metabolic tissues such as bones, tendons and ligaments, and the capillary network are sparse. The number of capillaries is large, except for cartilage, cornea, hair epithelium and enamel, all over the body. Slow flow rate, low elasticity and high permeability.These features facilitate the exchange of material between the blood and the tissue. The Dutch microscopist A. van Levin Hooker explained and perfected M. Malpiqui's knowledge of the capillary system through a number of subtle observations. It is proved that the arteries and veins are directly connected to the capillaries...
Other name

Blood vessel

Affiliated department

Internal Medicine - Department of Hematology




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